Dec 18 03:51:11.239 INFO checking arjanvaneersel/rust-blockchain against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 03:51:11.239 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/arjanvaneersel/rust-blockchain:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 03:51:11.738 INFO [stdout] 0b909586355713bb5fa9e7d01d6d31a81c2a781958221fc70d66f9ba51d94374
Dec 18 03:51:11.746 INFO running `"docker" "start" "-a" "0b909586355713bb5fa9e7d01d6d31a81c2a781958221fc70d66f9ba51d94374"`
Dec 18 03:51:13.688 INFO [stderr]     Checking sha2 v0.7.0
Dec 18 03:51:14.180 INFO [stderr]     Checking bfs v0.1.0 (/opt/crater/workdir)
Dec 18 03:51:15.036 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.036 INFO [stderr]   --> src/main.rs:17:5
Dec 18 03:51:15.036 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr] 17 |     io::stdout().flush();
Dec 18 03:51:15.037 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 03:51:15.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.037 INFO [stderr] 
Dec 18 03:51:15.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.037 INFO [stderr]   --> src/main.rs:18:5
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr] 18 |     io::stdin().read_line(&mut miner_addr);
Dec 18 03:51:15.037 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.037 INFO [stderr] 
Dec 18 03:51:15.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.037 INFO [stderr]   --> src/main.rs:21:5
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr] 21 |     io::stdout().flush();
Dec 18 03:51:15.037 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.037 INFO [stderr] 
Dec 18 03:51:15.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.037 INFO [stderr]   --> src/main.rs:22:5
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr] 22 |     io::stdin().read_line(&mut difficulty);
Dec 18 03:51:15.037 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.037 INFO [stderr] 
Dec 18 03:51:15.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.037 INFO [stderr]   --> src/main.rs:36:9
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr] 36 |         io::stdout().flush();
Dec 18 03:51:15.037 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.037 INFO [stderr] 
Dec 18 03:51:15.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.037 INFO [stderr]   --> src/main.rs:38:9
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr] 38 |         io::stdin().read_line(&mut choice);
Dec 18 03:51:15.037 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.037 INFO [stderr] 
Dec 18 03:51:15.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.037 INFO [stderr]   --> src/main.rs:52:17
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr] 52 |                 io::stdout().flush();
Dec 18 03:51:15.037 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.037 INFO [stderr] 
Dec 18 03:51:15.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.037 INFO [stderr]   --> src/main.rs:53:17
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr] 53 |                 io::stdin().read_line(&mut sender);
Dec 18 03:51:15.037 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.037 INFO [stderr] 
Dec 18 03:51:15.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.037 INFO [stderr]   --> src/main.rs:56:17
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr] 56 |                 io::stdout().flush();
Dec 18 03:51:15.037 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.037 INFO [stderr] 
Dec 18 03:51:15.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.037 INFO [stderr]   --> src/main.rs:57:17
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr] 57 |                 io::stdin().read_line(&mut receiver);
Dec 18 03:51:15.037 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.037 INFO [stderr] 
Dec 18 03:51:15.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.037 INFO [stderr]   --> src/main.rs:60:17
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr] 60 |                 io::stdout().flush();
Dec 18 03:51:15.037 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.037 INFO [stderr]    |
Dec 18 03:51:15.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.037 INFO [stderr] 
Dec 18 03:51:15.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.038 INFO [stderr]   --> src/main.rs:61:17
Dec 18 03:51:15.038 INFO [stderr]    |
Dec 18 03:51:15.038 INFO [stderr] 61 |                 io::stdin().read_line(&mut amount);
Dec 18 03:51:15.038 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.038 INFO [stderr]    |
Dec 18 03:51:15.038 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.038 INFO [stderr] 
Dec 18 03:51:15.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.040 INFO [stderr]   --> src/main.rs:80:17
Dec 18 03:51:15.040 INFO [stderr]    |
Dec 18 03:51:15.040 INFO [stderr] 80 |                 io::stdout().flush();
Dec 18 03:51:15.040 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.040 INFO [stderr]    |
Dec 18 03:51:15.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.040 INFO [stderr] 
Dec 18 03:51:15.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.040 INFO [stderr]   --> src/main.rs:81:17
Dec 18 03:51:15.040 INFO [stderr]    |
Dec 18 03:51:15.040 INFO [stderr] 81 |                 io::stdin().read_line(&mut new_diff);
Dec 18 03:51:15.040 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.040 INFO [stderr]    |
Dec 18 03:51:15.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.040 INFO [stderr] 
Dec 18 03:51:15.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.040 INFO [stderr]   --> src/main.rs:93:17
Dec 18 03:51:15.040 INFO [stderr]    |
Dec 18 03:51:15.040 INFO [stderr] 93 |                 io::stdout().flush();
Dec 18 03:51:15.040 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.040 INFO [stderr]    |
Dec 18 03:51:15.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.040 INFO [stderr] 
Dec 18 03:51:15.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.040 INFO [stderr]   --> src/main.rs:94:17
Dec 18 03:51:15.041 INFO [stderr]    |
Dec 18 03:51:15.041 INFO [stderr] 94 |                 io::stdin().read_line(&mut new_reward);
Dec 18 03:51:15.041 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.041 INFO [stderr]    |
Dec 18 03:51:15.041 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.041 INFO [stderr] 
Dec 18 03:51:15.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.177 INFO [stderr]   --> src/main.rs:17:5
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr] 17 |     io::stdout().flush();
Dec 18 03:51:15.177 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 03:51:15.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.177 INFO [stderr] 
Dec 18 03:51:15.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.177 INFO [stderr]   --> src/main.rs:18:5
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr] 18 |     io::stdin().read_line(&mut miner_addr);
Dec 18 03:51:15.177 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.177 INFO [stderr] 
Dec 18 03:51:15.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.177 INFO [stderr]   --> src/main.rs:21:5
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr] 21 |     io::stdout().flush();
Dec 18 03:51:15.177 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.177 INFO [stderr] 
Dec 18 03:51:15.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.177 INFO [stderr]   --> src/main.rs:22:5
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr] 22 |     io::stdin().read_line(&mut difficulty);
Dec 18 03:51:15.177 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.177 INFO [stderr] 
Dec 18 03:51:15.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.177 INFO [stderr]   --> src/main.rs:36:9
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr] 36 |         io::stdout().flush();
Dec 18 03:51:15.177 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.177 INFO [stderr] 
Dec 18 03:51:15.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.177 INFO [stderr]   --> src/main.rs:38:9
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr] 38 |         io::stdin().read_line(&mut choice);
Dec 18 03:51:15.177 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.177 INFO [stderr] 
Dec 18 03:51:15.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.177 INFO [stderr]   --> src/main.rs:52:17
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr] 52 |                 io::stdout().flush();
Dec 18 03:51:15.177 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.177 INFO [stderr] 
Dec 18 03:51:15.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.177 INFO [stderr]   --> src/main.rs:53:17
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr] 53 |                 io::stdin().read_line(&mut sender);
Dec 18 03:51:15.177 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.177 INFO [stderr] 
Dec 18 03:51:15.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.177 INFO [stderr]   --> src/main.rs:56:17
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr] 56 |                 io::stdout().flush();
Dec 18 03:51:15.177 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.177 INFO [stderr] 
Dec 18 03:51:15.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.177 INFO [stderr]   --> src/main.rs:57:17
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr] 57 |                 io::stdin().read_line(&mut receiver);
Dec 18 03:51:15.177 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.177 INFO [stderr]    |
Dec 18 03:51:15.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.177 INFO [stderr] 
Dec 18 03:51:15.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.177 INFO [stderr]   --> src/main.rs:60:17
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr] 60 |                 io::stdout().flush();
Dec 18 03:51:15.178 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.178 INFO [stderr] 
Dec 18 03:51:15.178 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.178 INFO [stderr]   --> src/main.rs:61:17
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr] 61 |                 io::stdin().read_line(&mut amount);
Dec 18 03:51:15.178 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.178 INFO [stderr] 
Dec 18 03:51:15.178 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.178 INFO [stderr]   --> src/main.rs:80:17
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr] 80 |                 io::stdout().flush();
Dec 18 03:51:15.178 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.178 INFO [stderr] 
Dec 18 03:51:15.178 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.178 INFO [stderr]   --> src/main.rs:81:17
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr] 81 |                 io::stdin().read_line(&mut new_diff);
Dec 18 03:51:15.178 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.178 INFO [stderr] 
Dec 18 03:51:15.178 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.178 INFO [stderr]   --> src/main.rs:93:17
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr] 93 |                 io::stdout().flush();
Dec 18 03:51:15.178 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.178 INFO [stderr] 
Dec 18 03:51:15.178 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 03:51:15.178 INFO [stderr]   --> src/main.rs:94:17
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr] 94 |                 io::stdin().read_line(&mut new_reward);
Dec 18 03:51:15.178 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:51:15.178 INFO [stderr]    |
Dec 18 03:51:15.178 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 03:51:15.178 INFO [stderr] 
Dec 18 03:51:15.211 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
Dec 18 03:51:16.360 INFO running `"docker" "inspect" "0b909586355713bb5fa9e7d01d6d31a81c2a781958221fc70d66f9ba51d94374"`
Dec 18 03:51:16.638 INFO running `"docker" "rm" "-f" "0b909586355713bb5fa9e7d01d6d31a81c2a781958221fc70d66f9ba51d94374"`
Dec 18 03:51:16.928 INFO [stdout] 0b909586355713bb5fa9e7d01d6d31a81c2a781958221fc70d66f9ba51d94374